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US7000643B2 - Bladder system for conduit expansion - Google Patents

Bladder system for conduit expansion Download PDF

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Publication number
US7000643B2
US7000643B2 US10/865,739 US86573904A US7000643B2 US 7000643 B2 US7000643 B2 US 7000643B2 US 86573904 A US86573904 A US 86573904A US 7000643 B2 US7000643 B2 US 7000643B2
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US
United States
Prior art keywords
hardware
injection
conduit
bladder
distal end
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US10/865,739
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English (en)
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US20050016607A1 (en
Inventor
Bryan St. Onge
Henri St. Onge
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Underground Solutions Technologies Group Inc
Original Assignee
Underground Solutions Technologies Group Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US10/865,739 priority Critical patent/US7000643B2/en
Application filed by Underground Solutions Technologies Group Inc filed Critical Underground Solutions Technologies Group Inc
Priority to AU2004250155A priority patent/AU2004250155A1/en
Priority to PCT/US2004/018805 priority patent/WO2004113778A2/fr
Priority to CA2529389A priority patent/CA2529389C/fr
Priority to AU2004250150A priority patent/AU2004250150B2/en
Priority to PCT/US2004/018837 priority patent/WO2004113625A2/fr
Priority to EP04755149A priority patent/EP1639289A2/fr
Assigned to DURATRON INTERNATIONAL, INC. reassignment DURATRON INTERNATIONAL, INC. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: UNDERGROUND SOLUTIONS TECHNOLOGIES GROUP, INC.
Publication of US20050016607A1 publication Critical patent/US20050016607A1/en
Application granted granted Critical
Publication of US7000643B2 publication Critical patent/US7000643B2/en
Assigned to UNDERGROUND SOLUTIONS TECHNOLOGIES GROUP, INC. reassignment UNDERGROUND SOLUTIONS TECHNOLOGIES GROUP, INC. SATISFIED (PAID) PROMISSORY NOTE Assignors: DURATRON INTERNATIONAL, INC.
Assigned to UNDERGROUND SOLUTIONS TECHNOLOGIES GROUP, INC. reassignment UNDERGROUND SOLUTIONS TECHNOLOGIES GROUP, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DURATRON INTERNATIONAL INC.
Assigned to DURATRON INTERNATIONAL INC. reassignment DURATRON INTERNATIONAL INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ST. ONGE, BRYAN, ST. ONGE, HENRI
Assigned to BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT reassignment BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS Assignors: UNDERGROUND SOLUTIONS TECHNOLOGIES GROUP, INC.
Assigned to UNDERGROUND SOLUTIONS TECHNOLOGIES GROUP, INC. reassignment UNDERGROUND SOLUTIONS TECHNOLOGIES GROUP, INC. TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS Assignors: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
    • F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
    • F16L55/1652—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section the flexible liner being pulled into the damaged section
    • F16L55/1654—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section the flexible liner being pulled into the damaged section and being inflated
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/06—Methods of, or installations for, laying sewer pipes

Definitions

  • the present invention relates generally to systems for repairing conduit, such as utilizing a conduit expansion process and, in particular, to a bladder system with accompanying hardware for expanding a liner conduit within a host conduit in such a conduit expansion process.
  • Conduit systems are used extensively throughout the world in order to transfer or convey material, such as water and other fluids, from location to location for distribution throughout the system.
  • material such as water and other fluids
  • extensive conduit systems are used to distribute water to both residences and businesses for use and further processes.
  • conduit or piping systems are located underground, as aboveground piping would be both unsightly and intrusive.
  • Typical water conduit systems transport material through pipe, e.g., cast iron, ductile iron, reinforced concrete, cement-asbestos, etc., buried underground with the branches extending in various directions in order to reach the end user.
  • pipe e.g., cast iron, ductile iron, reinforced concrete, cement-asbestos, etc.
  • Typical water conduit systems transport material through pipe, e.g., cast iron, ductile iron, reinforced concrete, cement-asbestos, etc.
  • the present piping fails and begins to leak, thereby reducing line pressure and unnecessarily allowing water to leak into the area surrounding the piping.
  • Such leaks not only affect the system, but increase the processing costs of the supplier, which, in turn, increases the end user costs. Therefore, these leaks must be quickly repaired and preventative measures taken to ensure that further leakage is prevented.
  • the St. Onge patent is directed to a method of relining sewer lines, water lines or gas lines, and uses a segmented liner of reduced size relative to the pipe being relined.
  • the method of the St. Onge patent uses heat and/or pressure to mold the reduced size pipe to the shape of the pipe being relined.
  • the inner or liner conduit is a thermoplastic pipe, typically a polyvinyl chloride (PVC) pipe that, when exposed to heat or pressure, expands and molds against the inside of an existing conduit to effect the relining of it.
  • PVC polyvinyl chloride
  • the liner conduit is plugged at either end and exposed to steam under pressure to heat the liner conduit along its length and apply pressure, which urges it to expand and contact the interior walls of the surrounding host conduit.
  • the liner conduit Once the liner conduit has fully expanded to conform to the interior surface of the existing conduit, it is cooled and the plugs are removed.
  • the resulting expanded liner conduit conforms to the walls of the host conduit, thereby preventing any further leakage.
  • the method of the St. Onge patent requires only pits to be dug at either end of the section to be repaired.
  • an object of the present invention to provide a bladder system for conduit expansion that overcomes the deficiencies of the prior art. It is another object of the present invention to provide a bladder system for conduit expansion that includes integrated hardware and other fittings, such that a single structure is required for use in connection with the conduit expansion system. It is yet another object of the present invention to provide a method of expanding a liner conduit within a host conduit in a conduit expansion process.
  • the present invention is directed to a bladder system for use in connection with a conduit expansion process, where a liner conduit is positioned within a host conduit, and preferably where the liner conduit is expanded within the host conduit and pressed against an inside wall of the host conduit.
  • the bladder system includes a bladder element with a first end, a second end and an internal area therein.
  • the bladder system further includes appropriate injection hardware positioned at the first end of a bladder element and distal end hardware positioned at the second end of the bladder element.
  • the injection hardware is integrally attached to the first end of the bladder element, and the distal end hardware is integrally attached to the second end of the bladder element.
  • the bladder system includes an injection material handling system that works in conjunction with the bladder system for injecting a material, such as steam, air, fluid or the like, into the bladder element, thereby expanding the bladder element against an inside wall of the liner conduit, which, in turn, expands the liner conduit against the inside wall of the host conduit.
  • the bladder system includes a control mechanism in communication with the injection hardware, the distal end hardware, the bladder element and/or the injection material handling system. This control mechanism communicates with and controls the various components and sub-components of the bladder system.
  • the present invention is also directed to a method of expanding a liner conduit within a host conduit.
  • the method includes the steps of: at least partially inserting the bladder element within the liner conduit; injecting a material through the injection hardware into the internal area of the bladder element; heating, by convection, the liner conduit via the injected material; and expanding the bladder element, and thereby expanding the liner conduit within the host conduit. Thereafter, the liner conduit is cooled by injecting a cooling material into the bladder element, such that the liner conduit is cooled in place.
  • FIG. 1 is a schematic view of a bladder system for conduit expansion according to the present invention
  • FIG. 2 is a schematic and partial sectional view of a preferred embodiment of a bladder system for conduit expansion according to the present invention.
  • FIG. 3 is a schematic view of a further preferred embodiment of a bladder system for conduit expansion according to the present invention.
  • the present invention is a bladder system 10 for use in connection with a conduit expansion process and is illustrated in various embodiments in FIGS. 1–3 .
  • the bladder system 10 is typically used in connection with a conduit expansion system 12 , and is also in an operative relationship or in fluid communication with an injection material handling system 14 .
  • the conduit expansion process or system 12 includes a liner conduit 16 having an inner wall 18 positioned within a host conduit 20 having an inner wall 22 .
  • the liner conduit 16 is manufactured from a thermoplastic material, such as polyvinyl chloride.
  • any material having the appropriate expansion characteristics can be used.
  • the bladder system 10 works equally effectively with any expandable liner conduit 16 .
  • the liner conduit 16 In operation of the conduit expansion system 12 , the liner conduit 16 , and specifically the liner conduit inner wall 18 , is subject to heat and pressure, which expands the thermoplastic material, such that a liner conduit outer wall 24 moves into contact with the host conduit inner wall 22 .
  • the liner conduit 16 is fed through the host conduit first end 26 until a liner conduit first end 30 is located adjacent the host conduit first end 26 and a liner conduit second end 32 is located adjacent the host conduit second end 28 . In this manner, the liner conduit 16 is positioned within the host conduit 20 and ready for the expansion process.
  • the bladder system 10 includes a bladder element 34 , which is manufactured from a flexible, expandable material, such as rubber, a synthetic polymer or other similar material having the appropriate flexibility and memory characteristics.
  • the bladder element 34 is positioned within the liner conduit 16 .
  • injection material 36 is injected into the bladder element 34 , causing the bladder element 34 to expand, with a bladder element outer wall 38 contacting the liner conduit inner wall 18 , thereby expanding the liner conduit 16 within the host conduit 20 .
  • the remaining injection material 36 is removed from the bladder element 34 , which causes the bladder element 34 to collapse and further allows for easy removal of the bladder element 34 from the liner conduit 16 .
  • injection hardware 40 is in operative and fluid communication with the bladder element 34 at the host conduit first end 26 and the liner conduit first end 30 .
  • distal end hardware 42 is in operative and fluid communication with the bladder element 34 , as positioned near the host conduit second end 28 and the liner conduit second end 32 .
  • Both the injection hardware 40 and the distal end hardware 42 allow for the controlled injection of injection material 36 , such as steam, air, fluid, water or the like.
  • both the injection hardware 40 and the distal end hardware 42 are manufactured with or integral with the bladder element 34 , such that the resulting bladder system 10 is a complete and integral structure that can be easily inserted within and removed from the liner conduit 16 as a contiguous unit.
  • the injection material 36 is steam and pressurized air.
  • the injection material handling system 14 injects steam and/or air into the bladder element 34 via the injection hardware 40 .
  • the injection material 36 moves along and expands the bladder element 34 , such that the bladder element outer wall 38 contacts the liner conduit inner wall 18 , effecting the expansion process as discussed above.
  • the steam and/or air is exhausted through the distal end hardware 42 and back into the injection material handling system 14 . Since the bladder element 34 is a flexible and controllable part of the bladder system 10 , the flow of injection material 36 into the bladder element 34 allows for uniform expansion of the liner conduit 16 within the host conduit 20 .
  • the expanded bladder element 34 will be held in place at the appropriate operating parameters until the liner conduit 16 attains the required expansion, where the liner conduit outer wall 24 contacts the host conduit inner wall 22 , at which point the bladder system 10 , working in conjunction with the conduit expansion system 12 , allows for the cooling of the liner conduit 16 within the host conduit 20 .
  • the injection material 36 is a fluid material, such as hot water. Therefore, the injection material handling system 14 injects the water or fluid into the bladder element 34 via the injection hardware 40 . As with the steam and/or air being used as injection material 36 , as discussed above, the fluid or water likewise expands the bladder element 34 against the liner conduit inner wall 18 .
  • the distal end hardware 42 is not used as an exhaust or outlet for the injection material 36 after usage. Instead, the distal end hardware 42 includes the appropriate attachments, connections and fittings, where the distal end hardware 42 acts as a cap, forcing the injection material 36 back along and within the bladder element 34 toward the injection hardware 40 .
  • the fluid is recycled back to the injection material handling system 14 , in this case a fluid system.
  • the use of this expandable bladder element 34 in connection with a fluid injection material 36 provides a more uniform distribution of heat and pressure throughout the bladder element 34 .
  • this preferred and non-limiting embodiment includes a control mechanism 44 , which acts to communicate with, monitor and/or control any one of the components and sub-components of the injection hardware 40 , the distal end hardware 42 , the bladder element 34 , and/or the injection material handling system 14 .
  • the control mechanism 44 can monitor and/or control any one or more of the components and subcomponents of the conduit expansion system 12 . Therefore, this control mechanism 44 can act as an integrated control unit for use in monitoring the physical parameters of the bladder system 10 , the conduit expansion system 12 and/or the injection material handling system 14 for use in process monitoring and making process improvements.
  • control mechanism 44 may be configured to: (i) monitor at least one physical characteristic of at least one of a material 36 injected into the bladder element 34 and the material 36 removed from the bladder element 34 ; (ii) control at least one physical characteristic of at least one of the injected material 36 and removed material 36 ; (iii) monitor at least one physical characteristic of the conduit expansion process 12 ; (iv) control at least one physical characteristic of the conduit expansion process 12 ; (v) monitor at least one physical characteristic of the host conduit 16 and/or the liner conduit 20 ; and (vi) control at least one physical characteristic of the host conduit 16 and/or the liner conduit 20 .
  • the control mechanism 44 may be a computing device, such as a portable computer, laptop, a PDA, a palmtop, a computer, a personal computer, an embedded microprocessor, a networked computer and a server.
  • this control mechanism 44 is loaded with control software that enables the control mechanism 44 to: (i) receive and process signals transmitted from the injection hardware 40 and/or the distal end hardware 42 ; (ii) transmit signals to the injection hardware 40 and/or the distal end hardware 42 ; (iii) monitor at least one physical characteristic of the conduit expansion process 12 , the injection hardware 40 , the distal end hardware 42 , the bladder element 34 , the injection material handling system 14 , a material 36 in contact with the injection hardware 40 and/or a material in contact with the distal end hardware 42 ; (iv) track at least one physical characteristic of the conduit expansion process 12 , the injection hardware 40 , the distal end hardware 42 , the bladder element 34 , the injection material handling system 14 , a material 36 in contact with the injection hardware 40
  • the bladder system 10 may also includes a communication device 46 .
  • the communication device 46 is positioned on or in operative communication with injection hardware 40 and/or the distal end hardware 42 , and this communication device 46 is in communication with the control mechanism 44 . Still further, the communication device 46 transmits, processes and receives signals with the control device 44 to effect control over the bladder system 10 , and this communication may be wireless or hardwired.
  • the bladder system may also include one or more measurement devices 48 . These measurement devices 48 may be positioned on or in operative communication with the bladder element 34 , the injection hardware 40 , the distal end hardware 42 , the liner conduit 16 and/or the host conduit 20 . Further, the measurement device 48 can measure a physical characteristic of the material 36 injected into the bladder element 34 , the bladder system 10 , the conduit expansion process 12 , the injection hardware 40 , the distal end hardware 42 , the bladder element 34 , the liner conduit 16 and/or the host conduit 20 . For example, the measurement device 48 may measure the pressure or temperature of the injected material 36 .
  • the present invention provides a bladder system 10 that can be used in conjunction with the conduit expansion process and system 12 , as well as the injection material handling system 14 .
  • the bladder system 10 is not limited to the use of steam and/or air, and may also use a fluid, such as water, as the injection material 36 . Since the injection hardware 40 and the distal end hardware 42 are integral with the bladder element 34 , the resulting bladder system is an easily positionable and transportable integral structure.
  • the installer need only insert the bladder system 10 within the liner conduit 16 , make the appropriate connections with the injection material handling system 14 and proceed with the expansion process.
  • the installer need not be positioned within a large trench to make any difficult fittings or connections at either the host conduit first end 26 and/or the host conduit second end 28 .
  • the length of the bladder element 34 may be variable, such that the bladder system 10 is useful for both extended conduit lining as well as spot repair.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Joints Allowing Movement (AREA)
US10/865,739 2003-06-13 2004-06-10 Bladder system for conduit expansion Expired - Fee Related US7000643B2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US10/865,739 US7000643B2 (en) 2003-06-13 2004-06-10 Bladder system for conduit expansion
PCT/US2004/018805 WO2004113778A2 (fr) 2003-06-13 2004-06-14 Systeme de vessie pour expansion de conduit
CA2529389A CA2529389C (fr) 2003-06-13 2004-06-14 Systeme et mecanisme de reparation de conduite
AU2004250150A AU2004250150B2 (en) 2003-06-13 2004-06-14 Bladder system for conduit expansion
PCT/US2004/018837 WO2004113625A2 (fr) 2003-06-13 2004-06-14 Systeme et mecanisme de reparation de conduite
EP04755149A EP1639289A2 (fr) 2003-06-13 2004-06-14 Systeme de vessie pour expansion de conduit
AU2004250155A AU2004250155A1 (en) 2003-06-13 2004-06-14 System and arrangement for conduit reparation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US47848303P 2003-06-13 2003-06-13
US10/865,739 US7000643B2 (en) 2003-06-13 2004-06-10 Bladder system for conduit expansion

Publications (2)

Publication Number Publication Date
US20050016607A1 US20050016607A1 (en) 2005-01-27
US7000643B2 true US7000643B2 (en) 2006-02-21

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Application Number Title Priority Date Filing Date
US10/865,739 Expired - Fee Related US7000643B2 (en) 2003-06-13 2004-06-10 Bladder system for conduit expansion

Country Status (4)

Country Link
US (1) US7000643B2 (fr)
EP (1) EP1639289A2 (fr)
AU (1) AU2004250150B2 (fr)
WO (1) WO2004113778A2 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050016450A1 (en) * 2003-06-13 2005-01-27 Underground Solutions Technologies Group, Inc. System and arrangement for conduit reparation
US20060048832A1 (en) * 2004-07-01 2006-03-09 Richrd Blackmore Portable pipe repair system with electrically heated positioning member
US20090127749A1 (en) * 2003-06-13 2009-05-21 Underground Solutions Technologies Group, Inc. Conduit Expansion Method
WO2013167889A2 (fr) 2012-05-08 2013-11-14 Smart Pipe Company Inc. Usine mobile pour fabrication et installation mobiles simultanées sur le terrain d'un tuyau non métallique
US20130340874A1 (en) * 2011-12-06 2013-12-26 Berry Metal Company Method to repair compromised inlet outlet piping
US20140224334A1 (en) * 2013-02-11 2014-08-14 Taiwan Semiconductor Manufacturing Company, Ltd. Chemical Dispense System with Reduced Contamination
US9453606B2 (en) * 2007-12-26 2016-09-27 Smart Pipe Company, Inc. Movable factory for simultaneous mobile field manufacturing and installation of non-metallic pipe

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7905255B2 (en) 2006-08-28 2011-03-15 Iwasaki-Higbee Jeffrey L Installation of sealant materials for repair of underground conduits
CN101303096A (zh) * 2007-08-09 2008-11-12 章明伟 钢塑复合管材制造设备及钢塑复合管材的制造方法
US8186385B2 (en) * 2009-07-06 2012-05-29 Iwasaki-Higbee Jeffrey L Packer for installing sealant in defective conduits
WO2017053806A1 (fr) * 2015-09-25 2017-03-30 Acalvio Technologies, Inc. Mécanismes de sécurité dynamique

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US4067349A (en) * 1976-11-15 1978-01-10 Halliburton Company Packer for testing and grouting conduits
US4361451A (en) 1980-04-18 1982-11-30 Coopetanche S.A. Process for everting a lining into a conduit utilizing two injection fluids
US4646787A (en) * 1985-03-18 1987-03-03 Institute Of Gas Technology Pneumatic pipe inspection device
US4671840A (en) 1983-02-03 1987-06-09 Coopetanche S.A. Process for internally lining a duct, a lining installation using this process and ducts provided with a lining in accordance with this process
US5346658A (en) 1991-06-03 1994-09-13 American Pipe & Plastics, Inc. Method for installing a pipe liner
US5368809A (en) 1986-03-31 1994-11-29 Nupipe, Inc. Method of installing a new pipe inside an existing conduit by progressive rounding
US5397513A (en) 1986-03-31 1995-03-14 Nupipe, Inc. Method for installing a length of substantially rigid thermoplastic pipe in an existing conduit
US5487411A (en) 1994-11-22 1996-01-30 Ipex Inc. Liner pipe for repair of a host pipe
US5490964A (en) 1993-04-13 1996-02-13 Shonan Gosei-Jushi Seisakusho K.K. Method and device for repairing a tubular conduit
US5503190A (en) 1992-10-09 1996-04-02 Shonan Gosei-Jushi Seisakusyo K.K. Method for repairing a tubular conduit
US5706861A (en) 1992-02-13 1998-01-13 Insituform (Netherlands) B.V. Rehabilitation of pipelines and passageways with a flexible liner using an inflatible bladder
US5794662A (en) 1995-08-18 1998-08-18 St Onge Henri S Pipe liner and method of installation
US5855729A (en) 1994-08-19 1999-01-05 Lmk Enterprises Apparatus for providing a tubular material within a pipeline
US5927341A (en) 1993-09-25 1999-07-27 Insituform (Netherlands) B.V. Lining of "Tees" and "Wyes" in pipelines or passageways
US6050300A (en) * 1998-09-11 2000-04-18 Karl Weiss Hoch-Tief - Und Rohrleitungsbau Gmbh & Co. Method and an apparatus for lining a pipe or duct
US6093363A (en) 1996-06-11 2000-07-25 Insituform (Netherlands) B.V. Method of lining pipelines with flow-through apparatus and liner
US20030015247A1 (en) 2001-07-17 2003-01-23 Driver Franklin Thomas Installation of cured in place liners with air and steam and installation apparatus
US6539979B1 (en) 2001-08-10 2003-04-01 Insituform (Netherlands) B.V. Pressurized bladder canister for installation of cured in place pipe
US6676398B2 (en) * 2001-02-20 2004-01-13 Q2100, Inc. Apparatus for preparing an eyeglass lens having a prescription reader

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US6276398B1 (en) * 2000-06-14 2001-08-21 Frederick Lange Inflatable packer for repairing conduits

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067349A (en) * 1976-11-15 1978-01-10 Halliburton Company Packer for testing and grouting conduits
US4361451A (en) 1980-04-18 1982-11-30 Coopetanche S.A. Process for everting a lining into a conduit utilizing two injection fluids
US4671840A (en) 1983-02-03 1987-06-09 Coopetanche S.A. Process for internally lining a duct, a lining installation using this process and ducts provided with a lining in accordance with this process
US4646787A (en) * 1985-03-18 1987-03-03 Institute Of Gas Technology Pneumatic pipe inspection device
US5368809B1 (en) 1986-03-31 1997-10-21 Nu Pipe Inc Method of installing a new pipe inside an existing conduit by progressive rounding
US5397513A (en) 1986-03-31 1995-03-14 Nupipe, Inc. Method for installing a length of substantially rigid thermoplastic pipe in an existing conduit
US5368809A (en) 1986-03-31 1994-11-29 Nupipe, Inc. Method of installing a new pipe inside an existing conduit by progressive rounding
US5346658A (en) 1991-06-03 1994-09-13 American Pipe & Plastics, Inc. Method for installing a pipe liner
US5706861A (en) 1992-02-13 1998-01-13 Insituform (Netherlands) B.V. Rehabilitation of pipelines and passageways with a flexible liner using an inflatible bladder
US5503190A (en) 1992-10-09 1996-04-02 Shonan Gosei-Jushi Seisakusyo K.K. Method for repairing a tubular conduit
US5490964A (en) 1993-04-13 1996-02-13 Shonan Gosei-Jushi Seisakusho K.K. Method and device for repairing a tubular conduit
US5927341A (en) 1993-09-25 1999-07-27 Insituform (Netherlands) B.V. Lining of "Tees" and "Wyes" in pipelines or passageways
US5855729A (en) 1994-08-19 1999-01-05 Lmk Enterprises Apparatus for providing a tubular material within a pipeline
US5487411A (en) 1994-11-22 1996-01-30 Ipex Inc. Liner pipe for repair of a host pipe
US5794662A (en) 1995-08-18 1998-08-18 St Onge Henri S Pipe liner and method of installation
US6093363A (en) 1996-06-11 2000-07-25 Insituform (Netherlands) B.V. Method of lining pipelines with flow-through apparatus and liner
US6050300A (en) * 1998-09-11 2000-04-18 Karl Weiss Hoch-Tief - Und Rohrleitungsbau Gmbh & Co. Method and an apparatus for lining a pipe or duct
US6676398B2 (en) * 2001-02-20 2004-01-13 Q2100, Inc. Apparatus for preparing an eyeglass lens having a prescription reader
US20030015247A1 (en) 2001-07-17 2003-01-23 Driver Franklin Thomas Installation of cured in place liners with air and steam and installation apparatus
US6539979B1 (en) 2001-08-10 2003-04-01 Insituform (Netherlands) B.V. Pressurized bladder canister for installation of cured in place pipe

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090127749A1 (en) * 2003-06-13 2009-05-21 Underground Solutions Technologies Group, Inc. Conduit Expansion Method
US9086184B2 (en) 2003-06-13 2015-07-21 Underground Solutions Technologies Group, Inc. System and method for conduit reparation
US8137599B2 (en) 2003-06-13 2012-03-20 Underground Solutions Technologies Group, Inc. Method for conduit expansion
US20090038703A1 (en) * 2003-06-13 2009-02-12 Underground Solutions Technologies Group, Inc. System and method for conduit reparation
US20050016450A1 (en) * 2003-06-13 2005-01-27 Underground Solutions Technologies Group, Inc. System and arrangement for conduit reparation
US7628943B2 (en) * 2004-07-01 2009-12-08 Energy Maintenance Services I LLC Portable pipe repair system with electrically heated positioning member
US7517212B2 (en) * 2004-07-01 2009-04-14 Energy Mainteance Services Group I, Llc Portable pipe repair system with electrically heated positioning member
US20090014080A1 (en) * 2004-07-01 2009-01-15 Richard Blackmore Portable pipe repair system with electrically heated positioning member
US20060048832A1 (en) * 2004-07-01 2006-03-09 Richrd Blackmore Portable pipe repair system with electrically heated positioning member
US9453606B2 (en) * 2007-12-26 2016-09-27 Smart Pipe Company, Inc. Movable factory for simultaneous mobile field manufacturing and installation of non-metallic pipe
US20130340874A1 (en) * 2011-12-06 2013-12-26 Berry Metal Company Method to repair compromised inlet outlet piping
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EP1639289A2 (fr) 2006-03-29
AU2004250150B2 (en) 2008-05-15
AU2004250150A1 (en) 2004-12-29
WO2004113778A2 (fr) 2004-12-29
WO2004113778A3 (fr) 2005-06-16
US20050016607A1 (en) 2005-01-27

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